Product Description Chalk Line Reel, Line Length (Ft.) 100, Line Material Polymer, Fill Weight (Oz.) 4, Gear Ratio 5:1, Case Material Die-Cast Aluminum, Handle Type Folding Crank, Door Type Sliding, Stainless Steel Hook, Features Chalk View Window, Case Color Yellow and Black From the Manufacturer The 100' FatMax Xtreme Chalk Box features a stainless steel hook and crank handle, on board hook storage, and premium polymer string to resist breakage and fraying. It rewinds 5x faster than standard chalk boxes and has a 5:1 gear ratio. Quick gear release ensures that the crank will not spin when pulling out line. The patented ChalkView case allows viewing of the chalk inside of the case. Die-cast aluminum housing is built for durability.